Preheat oven to 375 degrees F.
In a large mixing bowl, beat cream cheese until smooth. Add ranch dressing, blue cheese dressing, Frank's RedHot, garlic powder, and onion powder. Mix until fully combined.
Fold in shredded chicken, half the shredded cheese blend, and half the blue cheese crumbles.
Spread mixture evenly into an 8x8 baking dish. Sprinkle remaining shredded cheese over the top.
In a small bowl, mix breadcrumbs with melted butter until moistened. Sprinkle evenly over the cheese layer.
Bake 20 minutes until hot and bubbling. For a golden crust, broil 2 to 3 minutes at the end.
Top with remaining blue cheese crumbles and sliced green onions. Drizzle with extra Frank's if desired. Serve warm with tortilla chips, celery, carrots, or bread.